Used to verify that a port is working. This one works with Norton Utilities: Norton Diagnostics from Symantec.
 (To Computer).
 (To Computer).
25 PIN D-SUB MALE to Computer.
| Name | Pin | Pin | Name | 
|---|---|---|---|
| Data Bit 0 | 2 | 15 | Error | 
| Data Bit 1 | 3 | 13 | Select | 
| Data Bit 2 | 4 | 12 | Paper Out | 
| Data Bit 3 | 5 | 10 | Acknowledge | 
| Data Bit 4 | 6 | 11 | Busy | 
| Contributor: | Joakim Ögren | 
| Source: | ? | 
  Copyright © The Hardware Book Team 1996-2004.
  May be copied and redistributed, partially or in whole, as appropriate.
  Document last modified: 2002-01-10